qmk_firmware/keyboards/crkbd/rev1/legacy/split_scomm.h

/*
Copyright 2019 @foostan
Copyright 2020 Drashna Jaelre <@drashna>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef SPLIT_COMM_H
#define SPLIT_COMM_H

#ifndef SERIAL_USE_MULTI_TRANSACTION
/* --- USE Simple API (OLD API, compatible with let's split serial.c) --- */
#include "serial.h"

#else
/* --- USE flexible API (using multi-type transaction function) --- */
// Buffers for master - slave communication
#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
#define SERIAL_MASTER_BUFFER_LENGTH MATRIX_ROWS/2

extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH];
extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH];
extern uint8_t slave_buffer_change_count;

void serial_master_init(void);
void serial_slave_init(void);
int serial_update_buffers(int master_changed);

#endif

#endif /* SPLIT_COMM_H */